diff options
| -rw-r--r-- | mm/kasan/common.c | 8 | ||||
| -rw-r--r-- | mm/kasan/shadow.c | 1 |
2 files changed, 3 insertions, 6 deletions
diff --git a/mm/kasan/common.c b/mm/kasan/common.c index d0f8d7a955cd..e3cfe156f693 100644 --- a/mm/kasan/common.c +++ b/mm/kasan/common.c @@ -213,9 +213,7 @@ void __kasan_unpoison_object_data(struct kmem_cache *cache, void *object) void __kasan_poison_object_data(struct kmem_cache *cache, void *object) { - poison_range(object, - round_up(cache->object_size, KASAN_GRANULE_SIZE), - KASAN_KMALLOC_REDZONE); + poison_range(object, cache->object_size, KASAN_KMALLOC_REDZONE); } /* @@ -288,7 +286,6 @@ static bool ____kasan_slab_free(struct kmem_cache *cache, void *object, { u8 tag; void *tagged_object; - unsigned long rounded_up_size; tag = get_tag(object); tagged_object = object; @@ -309,8 +306,7 @@ static bool ____kasan_slab_free(struct kmem_cache *cache, void *object, return true; } - rounded_up_size = round_up(cache->object_size, KASAN_GRANULE_SIZE); - poison_range(object, rounded_up_size, KASAN_KMALLOC_FREE); + poison_range(object, cache->object_size, KASAN_KMALLOC_FREE); if (!kasan_stack_collection_enabled()) return false; diff --git a/mm/kasan/shadow.c b/mm/kasan/shadow.c index 44a2b748f9d3..7c2c08c55f32 100644 --- a/mm/kasan/shadow.c +++ b/mm/kasan/shadow.c @@ -82,6 +82,7 @@ void poison_range(const void *address, size_t size, u8 value) * addresses to this function. */ address = kasan_reset_tag(address); + size = round_up(size, KASAN_GRANULE_SIZE); shadow_start = kasan_mem_to_shadow(address); shadow_end = kasan_mem_to_shadow(address + size); |